Series 40 Ball Bearing Block - Single - Universal Head Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. Stabilized Acetal sheaves Acetal ball bearings Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") Pin Ø: 5mm(3/16") M.W.L.: 350kg(770lbs) B. L.: 1,000kg(2,200lbs) Weight: 70g(2.5oz)

Series 40 All Purpose Block - Single - Universal Head All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. stabilized Acetal sheaves Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel bearing race Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") Pin Ø: 5mm(3/16") M.W.L.: 400kg(880lbs) B. L.: 1,000kg(2,200lbs) Weight: 71g(2.5oz)

Series 40 Ball Bearing Block - Single - Stand Up Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head High static and dynamic load capacity Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. Stabilized Acetal sheaves Acetal ball bearings Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") M.W.L.: 350kg(770lbs) B. L.: 800kg(1,7600lbs) Weight: 71g(2.5oz)

Series 40 Ball Bearing Block - Single - Becket Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Snap fit removable becket pin Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Materials: Acetal ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fiber reinforced Nylon cheeks

Series 40 Ball Bearing Block - Single Upright Lead Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Applications: Typically used for halyards at the mast base. Materials: Acetal ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load housing

Series 40 Ball Bearing Block - Single - Loop Top Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Low friction, 2-stage ball bearing system High static and dynamic load capacity Lightweight Cheek cut-outs for easy bearing maintenance Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Materials: Acetal ball bearings UV stabilised Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fiber reinforced Nylon cheeks

Series 40 Ball Bearing Block - Single Loop Top - Becket Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Snap fit removable becket pin Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools. Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Materials: Acetal ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fiber reinforced Nylon cheeks

Series 40 Ball Bearing Block - Triple - Swivel Head Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Features a swivel shackle head for full 360° rotation Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Materials: Acetal ball bearings UV stabilised Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fiber reinforced Nylon cheeks

Series 40 Ball Bearing Block - Double - Swivel Head Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Features a swivel shackle head for full 360° rotation Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)

Series 30 Ball Bearing Block Single Becket Option Lashing Ball Bearing Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fibre-reinforced composites in the block head, cleat arms and beckets.  Highest Working Load in its Class The proven Ronstan 2-stage bearing system (Series 30 and larger) features high compression grade Acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range. The sheave and bearing system is supported by a fibre-reinforced load frame, computer modelled and optimised using advanced stress analysis methods. The Dyneema® Link, used in multi-sheave blocks, is produced from high spec SK75 fibre, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point. Simple, Versatile & Secure Attachment The single block is easily lashed to an attachment point, and can also accept Dyneema® Links and shackles for a variety of efficient attachment alternatives. The Dyneema® Link used in multi-sheave blocks is easily fitted and secured by a removable pin. The Dyneema® Link can also be removed and replaced by a shackle, custom lashing or strop. These blocks are far more compatible with Dyneema®/Spectra® lines, carbon laminate connection points and webbing than traditional blocks with steel loop tops or shackles. Low Profile & Compact The two way head in the single lashing block allows for alignment at 0° or 90° orientation, while the single swivel block allows for full articulation. The flexible Dyneema® Link used in multi-sheave blocks provides 0° or 90° orientation. It connects directly to the head of the block rather than to an intermediate head post. This reduces weight and gives the lowest possible profile while allowing full articulation. Beckets have been carefully designed to minimise height. Features: Lightweight Highest working load in its class Secure, versatile and secure attachement Low profile and compact Ultra low profile thru-sheave becket Self-lubricating Nylatron® sheave and full contact bearing for high dynamic loads Applications: Mainsheet systems and spinnaker sheets on dinghies to 5M(16') Halyard, vang and backstay applications on boats to 5M(16') Control line applications on larger yachts

Series 40 Ball Bearing Block - Fiddle Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Low friction, 2-stage ball bearing system High static and dynamic load capacity Lightweight Cheek cut-outs for easy bearing maintenance Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls. Materials: Acetal ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fiber reinforced Nylon cheeks

Series 40 Ball Bearing Block - Fiddle - Becket - Cleat Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Snap fit removable becket pin Multi-position cleat arm Low friction, 2-stage ball bearing system High static and dynamic load capacity Lightweight Cheek cut-outs for easy bearing maintenance Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position. Becket pin is removable so line can be spliced prior to fitting and is i Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats  up to 8m (26ft) Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls. Materials: Acetal ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fiber reinforced Nylon cheeks

Series 40 Ball Bearing Block - Fiddle - Becket Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Snap fit removable becket pin Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls. Materials: Acetal ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fiber reinforced Nylon cheeks

Series 40 Ball Bearing Block - Fiddle - Cleat Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Multi-position cleat arm Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position. Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Typically used in direct 3:1 purchase systems such as mainsheets and boom vangs On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls. Materials: Acetal ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fiber reinforced Nylon cheeks

Series 30 Ball Bearing Block - Single - Loop Top Features: Low friction 2-stage ball bearing system provides consistent performance over the full working load range High static and dynamic load capacity Light weight Versatile head fittings Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction Can be fitted with a shackle in either of two planes to allow correct alignment of the block Applications: Primary lead blocks on dinghies and catamarans Control lines on larger yachts Materials: U.V. stabilized Acetal sheaves Acetal ball bearings Impact modified, fiber reinforced and U.V. stabilized Nylon cheeks Grade 316 stainless steel load straps and head fittings Specifications: Sheave Ø: 30mm(1-3/16") Max. Rope Ø: 8mm(5/16") M.W.L.: 300kg(660lbs) B. L.: 750kg(1,650lbs) Weight: 28g(1.0oz)